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Add example values and results for theory filters (#72087)

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(cherry picked from commit 69c3e5644c)
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Baptiste Mille-Mathias 2020-10-09 17:52:16 +02:00 committed by GitHub
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15
docs/docsite/rst/user_guide/playbooks_filters.rst
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@ -903,24 +903,37 @@ You can select or combine items from sets or lists.
To get a unique set from a list::
# list1: [1, 2, 5, 1, 3, 4, 10]
{{ list1 | unique }}
# => [1, 2, 5, 3, 4, 10]
To get a union of two lists::
# list1: [1, 2, 5, 1, 3, 4, 10]
# list2: [1, 2, 3, 4, 5, 11, 99]
{{ list1 | union(list2) }}
# => [1, 2, 5, 1, 3, 4, 10, 11, 99]
To get the intersection of 2 lists (unique list of all items in both)::
# list1: [1, 2, 5, 3, 4, 10]
# list2: [1, 2, 3, 4, 5, 11, 99]
{{ list1 | intersect(list2) }}
# => [1, 2, 5, 3, 4]
To get the difference of 2 lists (items in 1 that don't exist in 2)::
# list1: [1, 2, 5, 1, 3, 4, 10]
# list2: [1, 2, 3, 4, 5, 11, 99]
{{ list1 | difference(list2) }}
# => [10]
To get the symmetric difference of 2 lists (items exclusive to each list)::
# list1: [1, 2, 5, 1, 3, 4, 10]
# list2: [1, 2, 3, 4, 5, 11, 99]
{{ list1 | symmetric_difference(list2) }}
# => [10, 11, 99]
.. _math_stuff: